Update training group management and enhance UI components

This commit introduces the `TrainingGroup` model and related functionality, allowing for the management of training groups within the application. The `ClubService` is updated to automatically create preset groups upon club creation. The frontend is enhanced with new views and components, including `TrainingGroupsView` and `TrainingGroupsTab`, to facilitate the display and management of training groups. Additionally, the `MembersView` is updated to allow adding and removing members from training groups, improving the overall user experience and interactivity in managing club members and their associated training groups.

backend/server.js

@@ -46,6 +46,7 @@ import memberActivityRoutes from './routes/memberActivityRoutes.js';
 import permissionRoutes from './routes/permissionRoutes.js';
 import apiLogRoutes from './routes/apiLogRoutes.js';
 import memberTransferConfigRoutes from './routes/memberTransferConfigRoutes.js';
+import trainingGroupRoutes from './routes/trainingGroupRoutes.js';
 import schedulerService from './services/schedulerService.js';
 import { requestLoggingMiddleware } from './middleware/requestLoggingMiddleware.js';
  
@@ -132,6 +133,7 @@ app.use('/api/member-activities', memberActivityRoutes);
 app.use('/api/permissions', permissionRoutes);
 app.use('/api/logs', apiLogRoutes);
 app.use('/api/member-transfer-config', memberTransferConfigRoutes);
+app.use('/api/training-groups', trainingGroupRoutes);
 
 app.use(express.static(path.join(__dirname, '../frontend/dist')));